/**
 * Copyright (C) Hamish Coleman
 * SPDX-License-Identifier: GPL-3.0-only
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not see see <http://www.gnu.org/licenses/>
 *
 */


#include <n3n/hexdump.h>  // for fhexdump
#include <stdint.h>   // for uint8_t
#include <stdio.h>    // for fprintf, FILE


void fhexdump (unsigned int display_addr, void *in, int size, FILE *stream) {
    uint8_t *p = in;

    while(size>0) {
        int i;

        fprintf(stream, "%03x: ", display_addr);

        for(i = 0; i < 16; i++) {
            if(i < size) {
                fprintf(stream, "%02x", p[i]);
            } else {
                fprintf(stream, "  ");
            }
            if(i==7) {
                fprintf(stream, "  ");
            } else {
                fprintf(stream, " ");
            }
        }
        fprintf(stream, "  |");

        for(i = 0; i < 16; i++) {
            if(i < size) {
                char ch = p[i];
                if(ch>=0x20 && ch<=0x7e) {
                    fprintf(stream, "%c", ch);
                } else {
                    fprintf(stream, " ");
                }
            }
        }
        fprintf(stream, "|\n");

        size -= 16;
        display_addr += 16;
        p += 16;
    }
}
